Job Title: Senior Engineer – BESS Battery Pack Electrical Design

Location: Bangalore

Job Type: Full-time

Experience: 4+ years

About the Role

We are looking for a Senior Engineer with strong hands-on experience in electrical design of Lithium-ion battery packs, preferably for BESS / Energy Storage applications.

The role will primarily focus on battery pack electrical architecture and design, including cell configuration, pack sizing, HV electrical systems, busbars, contactors, fuses, pre-charge circuits, BMS integration, and electrical protection.

The role will also involve supporting battery pack testing and validation to ensure the design meets performance, safety, and reliability requirements.

Key requirement: Candidates must have hands-on experience in electrical design of battery packs. Candidates whose experience is primarily mechanical pack design, enclosure/CAD design, thermal design, BMS testing, or battery testing will not be preferred.

Key Responsibilities

Electrical Battery Pack Design – 70%

• Design and develop electrical architecture of Lithium-ion battery packs for BESS applications.
• Develop cell configuration, series/parallel architecture, pack voltage, capacity and power calculations.
• Design and size busbars and electrical interconnections based on current, voltage and thermal requirements.
• Design/integrate HV systems, contactors, fuses, pre-charge circuits, HVIL, connectors and protection circuits.
• Integrate BMS, CAN communication, cell monitoring, balancing and protection logic.
• Select appropriate LFP/NMC cells and electrical components based on application requirements.
• Prepare electrical schematics, wiring diagrams, BOMs and design specifications.
• Work with suppliers on cells, BMS, contactors, fuses, connectors and other electrical components.
• Participate in DFMEA and electrical safety/design reviews.
• Work closely with mechanical and thermal teams to ensure complete pack-level integration.

Battery Testing – 15%

• Support and/or execute battery pack electrical and performance testing.
• Perform/support charge-discharge, capacity, cycle-life and electrical safety testing.
• Support thermal and IP testing as required.
• Troubleshoot electrical issues identified during testing and implement design improvements.

Validation & Compliance – 15%

• Support battery pack validation plans, test protocols and acceptance criteria.
• Analyze test results and support validation of pack performance and safety.
• Support thermal runaway testing and safety validation.
• Coordinate with external laboratories for applicable certifications such as UN38.3, IEC 62619, UL 9540A, etc.
• Prepare validation and technical reports.

Required Qualifications

• B.E./B.Tech or M.E./M.Tech in Electrical, Electronics, EEE, ECE, Mechatronics, or related engineering disciplines.
• 4+ years of hands-on experience in electrical design of Lithium-ion battery packs.
• Strong experience in battery pack electrical architecture and design.
• Hands-on experience with BMS integration and CAN communication.
• Strong knowledge of HV systems, busbars, contactors, fuses, pre-charge and electrical protection.
• Experience with LFP/NMC battery systems.
• Understanding of SOC/SOH, cell behaviour and battery safety.

Preferred Experience

• Experience in BESS / Energy Storage / EV battery systems.
• Experience with high-voltage battery packs (400V–1000V+).
• Exposure to thermal runaway mitigation and battery safety.
• Experience with DFMEA and battery certification.
• Experience working with cell/BMS/electrical component suppliers.

Standards & Compliance Engineer – BESS / PCS / C&I Systems

Location: Bangalore

Experience: 4+ Years

Qualification: B.E./B.Tech in Electrical, Electronics, or Power Engineering

Key Responsibilities:

• Ensure compliance of BESS, PCS, and C&I products with IEC, UL, IEEE, BIS, and other international standards.
• Prepare compliance matrices, perform gap analysis, and ensure product design meets regulatory requirements.
• Coordinate with certification bodies and testing laboratories for product certifications.
• Plan, execute, and monitor product testing and validation activities.
• Review test reports, resolve non-conformities, and maintain compliance documentation.
• Collaborate with design, quality, vendors, and project teams to achieve timely approvals.
• Support customer compliance queries and technical discussions.

Required Technical Skills:

• Strong knowledge of electrical systems and battery technologies.
• Hands-on experience with certification processes and testing methodologies.
• Understanding of compliance documentation and regulatory approvals.

Standards Exposure:

• IEC 62619, IEC 63056, UL 1973, UL 9540/9540A
• IEC 62477, IEC 62109, IEEE 1547
• IEC 61439, IEC 60204, UN38.3, BIS

Desired Skills:

• Excellent communication and coordination skills.
• Strong analytical and problem-solving abilities.
• Detail-oriented with a quality-focused approach.
• Ability to manage multiple projects and work independently.

This profile is ideal for candidates with experience in Battery Energy Storage Systems (BESS), Power Conversion Systems (PCS), renewable energy, electrical testing, certification, compliance, or power electronics.

Test Materialisation & Execution Engineer

Location: Bangalore (On-site/Hybrid)

Experience: 5–10 Years

About the Role

We are looking for a skilled Test Materialisation & Execution Engineer to design, build, and enhance testing infrastructure that enables reliable and efficient software validation. The role involves working on test frameworks, execution environments, automation systems, and developer tooling to improve software quality at scale.

The ideal candidate is a strong problem solver with hands-on experience in testing ecosystems, build systems, and scalable execution environments. You should be comfortable working with complex codebases and building solutions that help engineering teams ship reliable software faster.

Key Responsibilities

• Design and develop test execution frameworks and automation solutions.
• Build and maintain systems for test discovery, execution, reporting, and validation.
• Work with test runners, build systems, and development ecosystems to improve testing workflows.
• Develop scalable and reliable execution environments using sandboxed or containerized technologies.
• Integrate testing solutions with CI/CD pipelines and engineering workflows.
• Analyze test performance, reliability, and effectiveness to improve developer productivity.
• Work with engineering teams to identify and resolve flaky tests and improve test coverage.
• Build tools that enable safe execution of generated or untrusted code at scale.

Must Have Skills

• Hands-on experience with test frameworks and runners in at least one major programming ecosystem (Java, .NET, or similar).
• Strong understanding of build systems and software execution environments.
• Experience with sandboxed or containerized execution approaches.
• Strong programming skills in Python and/or TypeScript.
• Experience designing and implementing automation solutions.
• Ability to understand complex software systems and deliver production-ready solutions.

Good to Have

• Experience with CI/CD pipeline internals.
• Knowledge of code coverage tools and test analytics.
• Experience with flaky test detection and mitigation strategies.
• Exposure to test-impact analysis techniques.
• Experience safely executing untrusted, generated, or dynamically created code.
• Experience building developer tools or engineering productivity platforms.

What We Look For

• Strong ownership mindset and ability to deliver end-to-end solutions.
• Fast learner who can quickly understand unfamiliar codebases and technologies.
• Passion for improving developer productivity and software quality.
• Ability to solve complex technical challenges with minimal supervision.

Work Location

Bangalore – On-site / Hybrid